Resolution Criteria The women's singles final will be played on Sunday, August 23, not before 7:00 p.m. local time. The market resolves to whichever player wins the 2026 Cincinnati Open WTA 1000 women's singles title. "Other" resolves YES if the champion is not one of the six players listed. Resolution can be verified via the official WTA website at wtatennis.com/tournaments/cincinnati or major sports news outlets covering the tournament.

Background The 2026 Cincinnati Open is a professional hardcourt tennis tournament played from August 13 to August 23, 2026, at the Lindner Family Tennis Center in Mason, Ohio. Iga Swiatek is the defending champion, having beaten Jasmine Paolini 7-5, 6-4 in last year's final without dropping a set all tournament — though she comes in seeded seventh this year. The top six seeds are Aryna Sabalenka, Elena Rybakina, Jessica Pegula, Coco Gauff, Mirra Andreeva and Linda Noskova. The field features nine top-10 players, five past Cincinnati champions and 10 Grand Slam champions. Naomi Osaka withdrew with fatigue, and Karolina Muchova, Jasmine Paolini and Jaqueline Cristian withdrew with injuries.